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How to Replace the Temperature Sensor on a Ford Focus

Model: Ford Focus MK 1 - Years 1998-2004
Part: Engine coolant temperature sensor

To replace the temperature sensor on a Ford Focus, start by removing the 3 spark plugs. Use a screwdriver to remove the top cap from the sensor, disconnect the connector, and with a socket and extension, unscrew the temperature sensor. Once the old temperature sensor is removed, take the new temperature sensor, screw it into its place using a socket and extension, reconnect the connector, and replace the sensor cap. After replacing the cap, reassemble the 3 spark plugs and finally check the correct operation of the temperature sensor.

Updated on 17 July 2026 by ScegliAuto

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